TotalMarketCap

Market cap

$602.078 M

$1.73 -0.57%

Close of 6 Nov 2026

As of 6 Nov 2026, OIO Group (OIO) has a market capitalization of $602.1M. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

—

Not reported

Earnings

—

Not reported

Shares outstanding

348,022,108

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Other share classes

OIO Group lists more than one class of stock. Company figures above cover all classes combined.

Environmental Services, ranked by market cap

All 13 →
  1. #5Clean HarborsCLH$14.7B
  2. #6Casella Waste SystemsCWST$6.38B
  3. #7OIO GroupOIO$602.1M
  4. #8Perma Fix Environmental ServicesPESI$273.5M
  5. #9Quest ResourceQRHC$21.9M

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Where these numbers come from

Share counts and financials for OIO Group are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.